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Finding the Fourth Proportional to 450,995.11, 622,383.31 and 257,398.94

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Solution

The fourth proportional to 450,995.11, 622,383.31 and 257,398.94 is: 355,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,995.11 : 622,383.31 = 257,398.94 : x
  2. Step 2: Convert to fraction form
    450,995.11/622,383.31 = 257,398.94/x
  3. Step 3: Cross multiply
    450,995.11x = 622,383.31 × 257,398.94
  4. Step 4: Simplify right side
    450,995.11x = 160,200,804,267.69
  5. Step 5: Solve for x
    x = 160,200,804,267.69/450,995.11
  6. Step 6: Final answer
    x = 355,216.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.